LT8641EUDC#TRPBF

200kHz~3MHz Step-down type Adjustable 800mV~64.35V 3.5A QFN-20(3x4) Voltage Regulators - DC DC Switching Regulators RoHS

QFN-20(3x4)ROHS3 CompliantActive

65V, 3.5A synchronous buck silent switch

Manufacturer: ADI
Manufacturer part #: LT8641EUDC#TRPBF
Store part #: C462660
Package / case: QFN-20(3x4)
Category: Voltage Regulators - DC DC Switching Regulators
Packaging: Tape & Reel (TR)

Datasheet (PDF)

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2,966 in stock

#C462660

Stock & price checked 28 h ago

Quantity	Unit price	Pack price
1+	₹1,531.15	₹1,531.15
10+	₹1,344.26	₹13,442.60
30+	₹1,230.20	₹36,906.00
100+	₹1,134.82	₹1,13,482.00

Quantity (min 1)

1 × ₹1,531.15

₹1,531.15

excl. GST

₹1,806.76 incl. 18% GST

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Standard pack: 2,500 per reel

LT8641EUDC#TRPBF

₹1,531.15 for 1 + GST

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Specifications

Operating Temperature: -40℃~+125℃@(TJ)
Frequency - Switching: 200kHz~3MHz
Function: Step-down type
Number of Outputs: 1
Features: EMI optimization (spread spectrum);Light load efficient mode;Frequency synchronization;Output voltage tracking;Operating status indication;Adjustable soft-start
Output Type: Adjustable
Topology: Buck
Operating Voltage: 3V~65V
Switch tube (built-in/external): Built-in
Output Voltage: 800mV~64.35V
Output Current: 3.5A
Quiescent Current: 2.5uA

Packaging & compliance

RoHS: ROHS3 Compliant
Lifecycle: Active
Moisture sensitivity: MSL 1 (unlimited)
ECCN: EAR99
Packaging: Tape & Reel (TR)
Standard pack: 2,500 / Reel
Sold per: Piece
Minimum order: 1
Unit weight: 0.056 g

Overview

The LT8641 step-down regulator features Silent Switcher architecture designed to minimize EMI emissions while delivering high efficiency at frequencies up to 3MHz. Assembled in 3mm x 4mm QFN, the monolithic construction with integrated power switches and inclusion of all necessary circuitry yields a solution with a minimal PCB footprint. An ultralow 2.5μA quiescent current—with the output in full regulation—enables applications requiring highest efficiency at very small load currents. Transient response remains excellent and output voltage ripple is below 10mVₚ₋ₚ at any load, from zero to full current. The LT8641 allows high VIN to low VOUT conversion at high frequency with a fast minimum top switch on-time of 35ns. Operation is safe in overload even with a saturated inductor. Essential features are included and easy to use: An open-drain PG pin signals when the output is in regulation. The SYNC/MODE pin selects between Burst Mode, pulse-skipping, or spread spectrum mode, and also allows synchronization to an external clock. Soft-start and tracking functionality is accessed via the TR/SS pin. An accurate enable threshold can be set using the EN/UV pin and a resistor at the RT pin programs switch frequency.

Applications

Automotive and Industrial Supplies
General Purpose Step-Down
GSM Power Supplies

Key features

Silent Switcher architecture, Ultralow EMI emissions, Spread Spectrum Frequency Modulation
High Efficiency at High Frequency: Up to 95% Efficiency at 1MHz, 12VIN to 5VOUT; Up to 94% Efficiency at 2MHz, 12VIN to 5VOUT
Wide Input Voltage Range: 3V to 65V
3.5A Maximum Continuous Output, 5A Peak Transient Output
Ultralow Quiescent Current, Burst Mode Operation: 2.5μA IO regulating 12VIN to 3.3VOUT, Output Ripple < 10mVₚ₋ₚ
Fast Minimum Switch On-Time: 35ns
Low Dropout Under All Conditions: 130mV at 1A
Safely Tolerates Inductor Saturation in Overload
Adjustable and Synchronizable: 200kHz to 3MHz
Peak Current Mode Operation
Output Soft-Start and Tracking
Small 18-Lead 3mm x 4mm QFN